LMC6953 Datasheet (National Semiconductor) - PCI Local Bus Power Supervisor

LMC6953, PCI Local Bus Power Supervisor

The LMC6953 is a voltage supervisory chip designed to meet PCI (Peripheral Component Interconnect) Specifications Revision 2.1.

It monitors 5V and 3.3V power supplies.

In cases of power-up, power-down, brown-out, power failure and manual reset interrupt, the LMC6953 provides an active low reset.

RES

LMC6953 Features

* n Compliant to PCI specifications revision 2.1. n Under and over voltage detectors for 5V and 3.3V n Power failure detection (5V falling under 3.3V by 300 mV max) n Manual reset input pin n Guaranteed RESET assertion at VDD = 1.5V n Integrated reset delay circuitry n Open drain output n Adjustable r